EP 0729229 A2 19960828 - Adaptive balance filter
Title (en)
Adaptive balance filter
Title (de)
Adaptives Balancefilter
Title (fr)
Filtre d'équilibrage adaptatif
Publication
Application
Priority
DE 19506324 A 19950223
Abstract (en)
[origin: DE19506324C1] The adaptive filter (5) is connected to the transmission path (7) via a shaping filter (6) and its output is subtracted (12) from that of a corresp. filter (13) in the reception path (14). The main filter (15) linking the two paths directly has its transfer function coeffts. loaded by a transfer device (17) from the coefft. output (8) of the adaptive filter. The transfer takes place only when a quality comparison (19) reveals the adaptive filter to have greater echo attenuation than the main filter.
Abstract (de)
Adaptives Balancefilter, bei dem die Koeffizienten eines adaptiven Filters (5) nur dann in ein Hauptfilter (15) übernommen werden, wenn die Echodämpfung des adaptiven Filters (5) größer ist als die Echodämpfung des Hauptfilters (15). <IMAGE>
IPC 1-7
IPC 8 full level
H03H 21/00 (2006.01); H04B 3/23 (2006.01)
CPC (source: EP KR US)
H03H 21/0012 (2013.01 - EP KR US); H04B 3/23 (2013.01 - EP KR US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19506324 C1 19951012; CA 2170221 A1 19960824; DE 59607022 D1 20010712; EP 0729229 A2 19960828; EP 0729229 A3 19980107; EP 0729229 B1 20010606; ES 2158156 T3 20010901; HK 1003761 A1 19981106; JP H08265225 A 19961011; KR 960032886 A 19960917; TW 282596 B 19960801; US 5828589 A 19981027
DOCDB simple family (application)
DE 19506324 A 19950223; CA 2170221 A 19960223; DE 59607022 T 19960207; EP 96101761 A 19960207; ES 96101761 T 19960207; HK 98102993 A 19980409; JP 5555096 A 19960219; KR 19960004280 A 19960223; TW 85100608 A 19960119; US 60590296 A 19960223